Revision history of "2011 IMO Shortlist Problems/C3"

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  • (cur | prev) 05:44, 28 October 2013DANCH (talk | contribs). . (889 bytes) (+889). . (Created page with "Let <math>\mathcal{S}</math> be a finite set of at least two points in the plane. Assume that no three points of <math>\mathcal S</math> are collinear. A ''windmill'' is a proces...")